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文章论述了将含氯的三元乙丙橡胶XЭПДK-2作为聚合物型防老剂在异戊橡胶CKИ-3和顺丁橡胶CK且并用的胎侧胶料中的使用效果。试验结果表明,添加20质量份XЭПДK-2即可使胎侧橡胶的耐热老化、耐臭氧老化性能有明显的提高。与添加其他常用防老剂的批量生产橡胶的该项指标相比,差不多提高了1倍。此外,文章还阐明了含氯三元乙丙橡胶的防护机理。
The article describes the use of chlorinated ethylene-propylene rubber XЭПД K-2 as a polymer type antioxidant in the use of isoprene rubber CKИ-3 and cis-butyl rubber CK and the use of the side rubber compound. Test results show that the addition of 20 parts by mass of XЭПДK-2 can make the sidewall rubber heat aging, ozone aging resistance significantly improved. Compared with the mass-produced rubber added with other commonly used antioxidants, the index has almost doubled. In addition, the article also clarifies the chlorine-containing EPDM protective mechanism.